Examples with Goto net.runelite.asm.attributes.code.instructions.Goto used on opensource projects

Example 11 with Goto

use of net.runelite.asm.attributes.code.instructions.Goto in project runelite by runelite.

the class PacketWriteDeobfuscator method insert.

private void insert(ClassGroup group, PacketWrite write) {
    Instructions instructions = write.putOpcode.getInstruction().getInstructions();
    List<Instruction> ins = instructions.getInstructions();
    InstructionContext firstWrite = write.writes.get(0);
    InstructionContext lastWrite = write.writes.get(write.writes.size() - 1);
    int idx = ins.indexOf(lastWrite.getInstruction());
    assert idx != -1;
    // past write
    ++idx;
    Label afterWrites = instructions.createLabelFor(ins.get(idx));
    // pops arg, getfield
    InstructionContext beforeFirstWrite = firstWrite.getPops().get(1).getPushed();
    Label putOpcode = instructions.createLabelFor(beforeFirstWrite.getInstruction(), true);
    idx = ins.indexOf(beforeFirstWrite.getInstruction());
    assert idx != -1;
    --idx;
    net.runelite.asm.pool.Field field = new net.runelite.asm.pool.Field(new net.runelite.asm.pool.Class(findClient(group).getName()), RUNELITE_PACKET, Type.BOOLEAN);
    instructions.addInstruction(idx++, new GetStatic(instructions, field));
    instructions.addInstruction(idx++, new IfEq(instructions, putOpcode));
    Instruction before = ins.get(idx);
    for (InstructionContext ctx : write.writes) {
        insert(instructions, ctx, before);
    }
    idx = ins.indexOf(before);
    instructions.addInstruction(idx++, new Goto(instructions, afterWrites));
}

Example 12 with Goto

use of net.runelite.asm.attributes.code.instructions.Goto in project runelite by runelite.

the class ConstantParameter method removeDeadOperations.

// remove logically dead comparisons
private int removeDeadOperations(MethodContext mctx) {
    int count = 0;
    for (ConstantMethodParameter cmp : parameters.values()) {
        if (cmp.invalid) {
            continue;
        }
        if (!cmp.methods.contains(mctx.getMethod())) {
            continue;
        }
        // only annotate garbage value of last param
        if (cmp.paramIndex + 1 == mctx.getMethod().getDescriptor().size()) {
            annotateObfuscatedSignature(cmp);
        }
        for (// comparisons
        Instruction ins : // comparisons
        cmp.operations) {
            if (ins.getInstructions() == null || ins.getInstructions().getCode().getMethod() != mctx.getMethod()) {
                continue;
            }
            InstructionContext ctx = mctx.getInstructonContexts(ins).toArray(new InstructionContext[0])[0];
            // branch that is always taken
            boolean branch = cmp.result;
            if (ins.getInstructions() == null) {
                // ins already removed?
                continue;
            }
            Instructions instructions = ins.getInstructions();
            // remove the if
            if (ctx.getInstruction() instanceof If) {
                ctx.removeStack(1);
            }
            ctx.removeStack(0);
            int idx = instructions.getInstructions().indexOf(ins);
            if (idx == -1) {
                // already removed?
                continue;
            }
            ++count;
            Instruction to;
            if (branch) {
                JumpingInstruction jumpIns = (JumpingInstruction) ins;
                assert jumpIns.getJumps().size() == 1;
                to = jumpIns.getJumps().get(0);
            } else {
                // just go to next instruction
                to = instructions.getInstructions().get(idx + 1);
            }
            assert to.getInstructions() == instructions;
            assert ins != to;
            assert instructions.getInstructions().contains(to);
            instructions.remove(ins);
            assert instructions.getInstructions().contains(to);
            if (branch) {
                Goto gotoins = new Goto(instructions, instructions.createLabelFor(to));
                // insert goto
                instructions.getInstructions().add(idx, gotoins);
            }
        }
    }
    return count;
}